Explore our premium factory-direct solutions featuring cutting-edge PIR/PUR cores, high-capacity cold storage doors, and heavy-duty refrigeration systems built to international engineering codes.
Shaanxi YuanShengHeTong Refrigeration Equipment Co., Ltd. stands as a benchmark of engineering authority in the custom manufacture and worldwide export of foam composite insulation panels. Our deep sector expertise, established in 1996, spans over 28 years of structural panel innovation, catering to temperature-controlled systems, controlled environment agriculture, pharmaceutical containment, and large-scale industrial cold chain infrastructures.
We approach foam core panel engineering with scientific rigor, selecting and designing chemical systems such as Polyisocyanurate (PIR) and Polyurethane (PU/PUR) that optimize thermal performance. Our operations incorporate raw material verification, precision manufacturing via automated structural lines, and continuous quality audits to guarantee structural integrity, code-compliant fire safety, and exceptional R-value stability over service life.
As a single-source integrated contractor, our capability goes far beyond panels. We deliver comprehensive cold storage systems, custom industrial doors, high-efficiency evaporators, condensers, and factory-matched compression packages. By pairing design engineering, precise fabrication, global logistics compliance, and responsive field advisory support, we assist multinational clients in minimizing thermal risk and achieving operational energy goals.
Industrial developers and cold storage operators globally face tightening energy regulations, strict carbon taxation, and supply chain vulnerabilities. Standard construction methods are no longer sufficient to meet these demands.
Rising power tariffs are driving cold chain operators to prioritize thermal envelope performance. Insulated sandwich panels with high-index PIR chemistry reduce compressor runtimes, leading to significant savings in operating expenditures (OPEX) and operational overhead.
International environmental regulations mandate the use of zero-Ozone Depletion Potential (ODP) and extremely low Global Warming Potential (GWP) blowing agents. Our automated continuous lines run cyclopentane and advanced HFO formulation blends to meet compliance standards across North America, Europe, and Asia-Pacific.
High-hazard operations, such as automated food logistics hubs, require materials with strict fire safety ratings. We manufacture advanced fire-retardant PIR cores that form a carbonaceous char layer under flame exposure, preventing flame spread and meeting ASTM E84 and EN 13501-1 Class B-s1, d0 standards.
Compare the thermal performance, chemical formulations, and mechanical limits of our polyurethane and polyisocyanurate foam core composite systems.
| Performance Characteristic | Polyurethane (PUR) Core System | Polyisocyanurate (PIR) Core System | OEM Application Engineering Guidance |
|---|---|---|---|
| Core Thermal Conductivity (λ) | 0.021 - 0.023 W/m·K (Aged) | 0.019 - 0.021 W/m·K (Aged) | PIR provides 10-15% higher thermal resistance per unit of thickness. |
| Closed-Cell Density | 38 - 42 kg/m³ (High Density standard) | 40 - 45 kg/m³ (Enhanced Density) | Higher core density ensures structural integrity and resists local deflection. |
| Fire Reaction Rating | EN 13501-1 Class C / D | ASTM B2 Rating | EN 13501-1 Class B-s1,d0 | ASTM B1 Rating | PIR is recommended for high-hazard commercial fire safety requirements. |
| Standard Thickness Options | 50mm, 75mm, 100mm, 120mm, 150mm, 200mm | 75mm, 100mm, 120mm, 150mm, 200mm, 220mm | Use thicker profiles (150-220mm) for deep-freeze processing below -25°C. |
| Water Vapor Absorption | ≤ 1.0% (Volume basis) | ≤ 0.8% (Volume basis) | Critical for maintaining constant R-value under severe humidity pressure. |
| Joint System Mechanics | Cam-Lock Eccentric Hook / Tongue-and-Groove | Double Tongue-and-Groove with Labyrinth Seal | Cam-lock is ideal for rapid disassembly; double jointing suits larger continuous warehouses. |
| External Face Options | Stainless Steel 304/316, Prepainted Galvanized Steel, PVDF | Galvalume, PVDF Coated High-Corrosion Resistant Steel | Stainless steel face sheets are recommended for sanitary environments like food processing. |
We engineer composite panel systems designed to integrate with refrigeration components, reducing structural thermal bridging and ensuring optimal system efficiency.
We deliver comprehensive modular systems for cold logistics centers. Our custom panels integrate with insulated sliding doors and high-capacity floor paneling, working in tandem with FVB/FNV evaporator units to maintain consistent internal temperature zones.
Designed for food safety and wet cleanroom protocols, our wall and ceiling panels feature anti-corrosive coatings that withstand regular sanitization. High-efficiency evaporators and scroll compressor racks keep processing temperatures within regulatory parameters.
For operations requiring precise temperature profiles between +2°C to +8°C and -20°C, our high-index PUR/PIR sandwich panels provide the necessary thermal protection. Backup condensing units and dual air coolers safeguard inventory against external ambient heat spikes.
Take an inside look at our 60,000-square-meter facility, running advanced continuous laminating systems and high-pressure polyurethane blending equipment.
Our facility operates four standardized production workshops. Key equipment includes a continuous twin-belt laminator capable of producing panels up to 18 meters long, maintaining consistent core distribution and face adhesion.
Our quality control program is managed by a 10-person inspection team. They conduct incoming material testing, monitor in-line panel thickness, verify cure ratios, and perform final load bearing and thermal performance tests. Standardized processes allow us to consistently deliver high-performance panels to our customers.
We also manufacture specialized hardware for temperature-controlled applications, including sliding and hinged cold storage doors with double perimeter seals and integrated safety release systems.
From a regional refrigeration equipment installer to a global exporter of advanced composite sandwich panels, trace the milestones of Shaanxi YuanShengHeTong.
Our products undergo external laboratory verification, fire safety testing, and structural performance audits to comply with relevant construction codes and building standards.
Find answers to common engineering questions regarding product specifications, fire ratings, installation methods, and system design.
PIR (polyisocyanurate) is produced using a higher excess of isocyanate reactant, resulting in stronger chemical ring structures. This isocyanate index gives PIR better thermal stability, a lower thermal conductivity rating (λ = 0.019 - 0.021 W/m·K), and improved fire reaction class (EN 13501-1 Class B) compared to PUR. For facilities requiring high fire performance and low operational energy costs, PIR is typically recommended. PUR is suitable for standard temperature-controlled cold storage where budget efficiency is a priority.
Our sandwich panels are manufactured with a double-tongue-and-groove joint profile, creating a winding path that minimizes convective heat transfer and vapor migration. Additionally, we integrate continuous sealants within the joint recess and offer eccentric cam-lock joining mechanisms. This configuration draws the panel faces tightly together, compressing the inner vapor barrier and eliminating thermal bridges that could otherwise lead to condensation and ice buildup at the joints.
For cleanrooms and food processing zones subjected to regular chemical washdowns, we recommend either 304/316 grade stainless steel or prepainted galvanized steel (PPGI) finished with high-performance coatings like PVDF or durable polyamide. These coatings resist pitting and surface breakdown from sanitizing agents, protecting the structural core of the composite panels over their operational lifespan.
Our panels are engineered to meet international deflection limits, typically L/200 or L/240 under operational loads. Maximum clear spans vary by panel thickness and load parameters; for instance, a 100mm core thickness can support spans up to 6 meters under standard design loads. Our engineering team provides detailed structural calculations for each project, ensuring ceiling panels are properly supported by external structural systems.
Yes. Our continuous manufacturing lines use cyclopentane or advanced HFO formulation blends. These foaming agents have zero Ozone Depletion Potential (ODP) and a Global Warming Potential (GWP) of less than 5, satisfying international environmental regulations. This compliance enables our products to be exported to markets with strict building codes, including North America, Europe, and the APAC region.
Explore our range of matching accessories, polyurethane composite insulation materials, and industrial refrigeration equipment.
YuanShengHeTong